Ship&#39;s paint.



I No. 898,476. 7

AUGUST PAUL HORN, OF HAMBURG, GERMANY.

SHIP-S PAINT.

Specification of Letters Patent.

1 Patented Sept. 15, 1908.

Application filed December 26, 1907. Serial No. 408,189,

To all whom it may concern: a

Be it known that 1, AUGUST PAUL HORN,

subject of Germany, residing at Hamburg,-

Germany, have invented new and useful Improvements in Ships Paints, of which the following is a specification.

Hitherto shipsaints have had as a basis well known inert acquers or colors to whichsubstances, active against animal and vegetablehfe, such as quicksilver, copper combinations, tobacco extract and the like, were added. The action of these lacquers orcolors when applied to ships bottoms is however very restricted and as all binding agents hitherto used are more or less soluble in sea water, it is not very long before the whole of the active poisonous substances are freed poison; Such substances are found in" the products of condensation of phenols with aldehydes. A ships paint produced with the aid of these products when applied to the v hull of a .ship soon kills the livin organisms which have become attached t ereto. In my opinion this action of this im roved paint is based on the fact that throug the action' of the living organisms a gradual splitting up of the'products of condensation into then components effected.

The resin of phenol-aldehyde can be produced in any known manner, for instance two parts phenol are heated in a steam bath together with two parts of 40% formaldephenol and formaldehyde is hyde and one part of concentrated hydrochloric acid. The product so produced is perfectly insoluble in water, and only slowl soluble in turpentine oil, and very slowly so uble in alcohol. The paint produced from the said products of condensation can also be advantageously used in covering paints for the walls of rooms and the like as protection against vermin, fungus and the like.

Having now particularly described and ascertained the nature of the said invention and in What manner the same is to be performed, I declare that What I claim is:

Ships paints containin densation of phenols and al ehydes.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' AUG ST PAUL HORN. Witnesses:

ERNEST H. L. MUMMENHOFF. ALFRED JOSEPH.

dproducts of con- 

